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authorLinus Torvalds <torvalds@linux-foundation.org>2013-12-30 14:31:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-12-30 14:31:11 -0800
commit71ce176ee6ed1735b9a1160a5704a915d13849b1 (patch)
treeb3c8765d428d0245593c576cb1b3d02900cf7157 /drivers
parent6e4c61968beb641e8372733e4a0c0cdee720e675 (diff)
parentf0082e3cf70e19dce4e96494078ec3ddb89550d3 (diff)
Merge tag 'dt-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring: - Fix 2 regressions found on PPC - Allow NULL ptr in unflatten_and_copy_device_tree - Update my email address * tag 'dt-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: MAINTAINERS: Update Rob Herring's email address of/irq: Fix device_node refcount in of_irq_parse_raw() of/Kconfig: Spelling s/one/once/ Revert "of/address: Handle #address-cells > 2 specially" of: Fix NULL dereference in unflatten_and_copy()
Diffstat (limited to 'drivers')
-rw-r--r--drivers/of/Kconfig2
-rw-r--r--drivers/of/address.c8
-rw-r--r--drivers/of/fdt.c12
-rw-r--r--drivers/of/irq.c5
4 files changed, 12 insertions, 15 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index de6f8990246..c6973f101a3 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -20,7 +20,7 @@ config OF_SELFTEST
depends on OF_IRQ
help
This option builds in test cases for the device tree infrastructure
- that are executed one at boot time, and the results dumped to the
+ that are executed once at boot time, and the results dumped to the
console.
If unsure, say N here, but this option is safe to enable.
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 4b9317bdb81..d3dd41c840f 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -69,14 +69,6 @@ static u64 of_bus_default_map(__be32 *addr, const __be32 *range,
(unsigned long long)cp, (unsigned long long)s,
(unsigned long long)da);
- /*
- * If the number of address cells is larger than 2 we assume the
- * mapping doesn't specify a physical address. Rather, the address
- * specifies an identifier that must match exactly.
- */
- if (na > 2 && memcmp(range, addr, na * 4) != 0)
- return OF_BAD_ADDR;
-
if (da < cp || da >= (cp + s))
return OF_BAD_ADDR;
return da - cp;
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 2fa024b97c4..758b4f8b30b 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -922,8 +922,16 @@ void __init unflatten_device_tree(void)
*/
void __init unflatten_and_copy_device_tree(void)
{
- int size = __be32_to_cpu(initial_boot_params->totalsize);
- void *dt = early_init_dt_alloc_memory_arch(size,
+ int size;
+ void *dt;
+
+ if (!initial_boot_params) {
+ pr_warn("No valid device tree found, continuing without\n");
+ return;
+ }
+
+ size = __be32_to_cpu(initial_boot_params->totalsize);
+ dt = early_init_dt_alloc_memory_arch(size,
__alignof__(struct boot_param_header));
if (dt) {
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 786b0b47fae..27212402c53 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -165,7 +165,6 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
if (of_get_property(ipar, "interrupt-controller", NULL) !=
NULL) {
pr_debug(" -> got it !\n");
- of_node_put(old);
return 0;
}
@@ -250,8 +249,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
* Successfully parsed an interrrupt-map translation; copy new
* interrupt specifier into the out_irq structure
*/
- of_node_put(out_irq->np);
- out_irq->np = of_node_get(newpar);
+ out_irq->np = newpar;
match_array = imap - newaddrsize - newintsize;
for (i = 0; i < newintsize; i++)
@@ -268,7 +266,6 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
}
fail:
of_node_put(ipar);
- of_node_put(out_irq->np);
of_node_put(newpar);
return -EINVAL;